1WCD

Crystal structure of IBDV T1 virus-like particle reveals a missing link in icosahedral viruses evolution


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 Å
  • R-Value Free: 0.249 
  • R-Value Work: 0.219 
  • R-Value Observed: 0.219 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

The Birnavirus Crystal Structure Reveals Structural Relationships Among Icosahedral Viruses.

Coulibaly, F.Chevalier, C.Gutsche, I.Pous, J.Navaza, J.Bressanelli, S.Delmas, B.Rey, F.A.

(2005) Cell 120: 761

  • DOI: 10.1016/j.cell.2005.01.009
  • Primary Citation of Related Structures:  
    1WCD, 1WCE

  • PubMed Abstract: 
  • Double-stranded RNA virions are transcriptionally competent icosahedral particles that must translocate across a lipid bilayer to function within the cytoplasm of the target cell. Birnaviruses are unique among dsRNA viruses as they have a single T = 13 icosahedral shell, lacking the characteristic inner capsid observed in the others ...

    Double-stranded RNA virions are transcriptionally competent icosahedral particles that must translocate across a lipid bilayer to function within the cytoplasm of the target cell. Birnaviruses are unique among dsRNA viruses as they have a single T = 13 icosahedral shell, lacking the characteristic inner capsid observed in the others. We determined the crystal structures of the T = 1 subviral particle (260 angstroms in diameter) and of the T = 13 intact virus particle (700 angstroms in diameter) of an avian birnavirus to 3 angstroms and 7 angstroms resolution, respectively. Our results show that VP2, the only component of the virus icosahedral capsid, is homologous both to the capsid protein of positive-strand RNA viruses, like the T = 3 nodaviruses, and to the T = 13 capsid protein of members of the Reoviridae family of dsRNA viruses. Together, these results provide important insights into the multiple functions of the birnavirus capsid and reveal unexpected structural relationships among icosahedral viruses.


    Organizational Affiliation

    Laboratoire de Virologie Moléculaire et Structurale, UMR 2472/1157 CNRS-INRA and IFR 115, 1 Avenue de la Terrasse, 91198 Gif-sur-Yvette Cedex, France.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
MAJOR STRUCTURAL PROTEIN VP2A [auth J]441Infectious bursal disease virusMutation(s): 0 
EC: 3.4.21
UniProt
Find proteins for P15480 (Avian infectious bursal disease virus (strain Cu-1))
Explore P15480 
Go to UniProtKB:  P15480
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 Å
  • R-Value Free: 0.249 
  • R-Value Work: 0.219 
  • R-Value Observed: 0.219 
  • Space Group: P 63
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 258.929α = 90
b = 258.929β = 90
c = 347.186γ = 120
Software Package:
Software NamePurpose
CNSrefinement
DENZOdata reduction
SCALEPACKdata scaling
AMoREphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2005-04-05
    Type: Initial release
  • Version 1.1: 2011-05-08
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance